Modal analysis of gearbox transmission system in Bucket wheel excavator
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Laboratory of mechanics, Modelling and Production, National school of Engineers of Sfax, Sfax
Submission date: 2016-03-30
Acceptance date: 2016-08-12
Online publication date: 2017-01-15
Publication date: 2017-01-15
Journal of Theoretical and Applied Mechanics 2017;55(1):253-264
Planetary gears are widely used in modern machines as ones of the most effective forms of power transmission. In this paper, a special configuration of a gearbox composed of one stage spiral bevel gear and a two stage helical planetary gear used in a bucket wheel excavator gearbox is presented to investigate its modal properties. A lumped-parameter model is formulated to obtain equations of motion and the eigenvalue problem is solved. The modes are presented in low-frequency and high-frequency bands. Distributions of modal kinetic and strain energies are studied.
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